Home / 14,582.13-20,121.31-8,207.63

Finding the Fourth Proportional to 14,582.13, 20,121.31 and 8,207.63

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Solution

The fourth proportional to 14,582.13, 20,121.31 and 8,207.63 is: 11,325.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,582.13 : 20,121.31 = 8,207.63 : x
  2. Step 2: Convert to fraction form
    14,582.13/20,121.31 = 8,207.63/x
  3. Step 3: Cross multiply
    14,582.13x = 20,121.31 × 8,207.63
  4. Step 4: Simplify right side
    14,582.13x = 165,148,252.70
  5. Step 5: Solve for x
    x = 165,148,252.70/14,582.13
  6. Step 6: Final answer
    x = 11,325.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.